F. Alicata et al., MONTE-CARLO EVALUATION OF THE HYDRATION FREE-ENERGY FOR HYDRONIUM, HYDROXYL AND AMMONIUM-IONS, Journal of molecular liquids, 58, 1993, pp. 117-128
We report on the Monte Carlo perturbative evaluation of the hydration
free energy for two unstable, H3O+ and OH-, and one stable, NH4+, ions
. Results indicate that, at variance with the stable ion case, water m
olecules far from the first coordination shell are unable to reach equ
ilibrated configurations during the lifetime of the unstable ions.